You need electricity to pump water. The fire started when the electric lines to the city broke. There was no power. And there are no pumps for that purpose.
This was DIE in action.
Where did you learn this?
Impeller pumps can be powered by any rotating motive source.
A diesel or gas engine, an electric motor, jet turbine through a gear box, steam engine, compressed air motor, horse treadmill, wind turbine, you name it, depending on the size of pump, pressure, head and distance (pipe friction).
Then there are piston pumps, requiring a crankshaft to convert rotary power or a linear motor, human power, etc.
Then air driven diaphragm pumps.
Most fire trucks have diesel power pumps running off a power takeoff.
There are more, I'm just mentioning the more common ones.